JP2004248560A - Stand type structure of spare seedling for riding rice transplanter - Google Patents

Abstract

An object of the present invention is to provide a spare seedling rest (a spare seedling mounting part and a spare seedling placement part) for a pilot-operated rice transplanter in a structure in which a pilot on the ground controls the aircraft while standing on the front side or side of the front of the aircraft. (Support link) is not obstructed.
A support link (33) that can swing back and forth around a horizontal axis (P2) is provided on a lateral side of a front part of the body, and a spare seedling mounting part (39) is provided with the support link (33). The portion 39 and the support link 33 can be freely moved over a work position A1, which is located on the lateral side of the front of the body, a supply position A2, which is ahead of the work position A1, and a retreat position A3, which is behind the work position A1. Constitute.
[Selection diagram] Fig. 4

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a stand for a spare seedling in a riding type rice transplanter.
[0002]
[Prior art]
In a riding type rice transplanter, for example, as disclosed in Patent Literature 1, a support link (30A, 30A in FIGS. 1 and 2 of Patent Literature 1) capable of swinging back and forth around a horizontal axis in the lateral direction of the machine body. 30B) is provided on the lateral side of the front of the body, and a spare seedling mounting portion (28 in FIGS. 1 and 2 of Patent Document 1) for mounting the spare seedling is provided on the support link, and the spare seedling is provided. There is one that constitutes a mounting table.
Thereby, according to the structure of Patent Literature 1, the spare seedling placing portion and the support link are moved to the working position located on the lateral side of the front part of the body (the two-dot chain line in FIGS. 1 and 2 of Patent Literature 1). ), And a replenishment position located ahead of the work position (see the state of the solid line in FIGS. 1 and 2 of Patent Document 1).
[0003]
Therefore, in the case of normal planting work, the spare seedling placement part and the support link are located at the work position, and the operator of the operating unit of the aircraft takes out the seedling from the spare seedling placement part and places the seedling. Replenish the planting equipment. When replenishing seedlings from the ridge, stop the fuselage with the front part of the fuselage in contact with the ridge, and move the spare seedling mounting part and the support link to the replenishment position. Supply seedlings to seedling holder.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 2-32006 (FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
For example, when the aircraft is put into a paddy field over a ridge or out on a road over a ridge, in recent years, a pilot descends from the operating section of the fuselage and controls the There are times when you do things like get into the hill or get out on the street over the ridges.
[0006]
In this case, the pilot on the ground controls the fuselage while standing on the front or side of the front of the fuselage. Therefore, as in the structure of Patent Document 1, a spare seedling rest is placed on the horizontal side of the front of the fuselage. When the (preliminary seedling placement part and support link) are provided, the stand for the spare seedling (preliminary seedling placement part and support link) is in the way, making it difficult for pilots on the ground to operate the aircraft. There is.
The present invention relates to a spare seedling rest structure of a riding type rice transplanter, in which a pilot on the ground controls the machine while standing on the front side or the side of the front part of the machine body, the spare seedling rest (a spare seedling mounting portion and The supporting link is not obstructed.
[0007]
[Means for Solving the Problems]
[I]
A support link that can swing back and forth around the horizontal axis in the horizontal direction of the machine is provided on the lateral side of the front of the machine, and a spare seedling mounting section for placing seedlings is provided on the support link, According to the features of claim 1,
The spare seedling mounting portion and the support link are configured to be movable over a work position located on the lateral side of the front of the machine, a replenishment position ahead of the work position, and a retreat position behind the work position. I have.
[0008]
According to the feature of the first aspect, for example, when the airframe is put into a paddy field over a ridge or when it is put out on a road over a ridge, the spare seedling mounting portion and the support link may be moved to the evacuation position. Thus, according to the first aspect of the present invention, when the pilot on the ground stands on the front side or the side of the front of the fuselage and operates the fuselage, the spare seedling placing portion and the support link at the retreat position are controlled by the pilot on the ground. Since it is located at a position relatively distant from the rear, it is difficult for the operator on the ground to obstruct the spare seedling placement portion and the support link at the retreat position.
[0009]
According to the features of claim 1, as described above, in addition to the case where the airframe is put into the paddy field beyond the ridge or the case where it is put out on the road beyond the ridge, for example, when the riding type rice transplanter is stored in the barn, If the seedling placement part and the support link are moved to the retracted position, the riding rice transplanter can be stored in the barn without the spare seedling placement part and the support link becoming an obstacle.
According to the first aspect of the present invention, a support link that can swing back and forth around the horizontal axis in the lateral direction of the body is provided on the lateral side of the front part of the body, and the auxiliary link for placing the seedling on which the seedlings are placed is provided. When the spare seedling placement part and the support link are moved to the working position, the replenishment position and the retreat position, the spare seedling placement part and the support link are displaced to the right (left) lateral outside. Nothing. Thereby, according to the feature of claim 1, when the spare seedling placing part and the support link are moved to the evacuation position in the barn as described above, the spare seedling placing part and the supporting link are brought into contact with the other things in the barn. It is less likely to get lost.
[0010]
According to the feature of the first aspect, the spare seedling placing portion and the support link are configured to be movable to the working position and the replenishing position. The placement section and the support link can be kept at the working position, and when the seedlings are replenished from the ridges, the spare seedling placement section and the support link can be moved to the supply position.
[0011]
[II]
According to the feature of the second aspect, similar to the case of the first aspect, the "operation" described in the above [I] is provided, and in addition, the following "operation" is provided.
According to the second aspect of the present invention, there is provided an urging mechanism for urging the spare seedling placing portion and the support link toward the work position.
Thereby, according to the feature of claim 2, when moving the spare seedling placing part and the support link from the supply position to the working position, when moving the spare seedling placing part and the supporting link from the retreat position to the working position, Since the urging force of the urging mechanism functions as an auxiliary, the spare seedling placing portion and the support link can be relatively easily moved from the replenishment position to the work position (from the retreat position to the work position).
[0012]
[III]
According to the feature of the third aspect, similar to the case of the second aspect, the "action" described in the above [I] and [II] is provided, and in addition, the following "action" is provided.
According to the feature of the third aspect, the biasing mechanism is configured by attaching the torsion bar to the support link.
According to the feature of the third aspect, the torsion bar tries to return to the neutral position even if the torsion bar is twisted to one side from the neutral position or torsion from the neutral position to the other side. In the case where the spare seedling placement part and the support link are urged in a short time, it is possible to configure so that one spare torsion bar urges the spare seedling placement part and the support link toward the work position.
[0013]
[IV]
According to the feature of the fourth aspect, similar to any one of the first to third aspects, the "action" described in the above-mentioned [I] to [III] is provided. It has various "actions".
According to a fourth aspect of the present invention, there is provided a lock mechanism capable of holding and releasing the spare seedling placement part and the support link at the working position, the supply position and the retreat position, and locking the spare seedling placement part and the support link. Thereby, it can be stably held at the working position, the replenishing position and the retreat position.
[0014]
[V]
According to the feature of claim 5, like the case of any one of claims 1 to 4, the “action” described in the above items [I] to [IV] is provided, and in addition to this, It has various "actions".
According to the feature of claim 5, the operation arm is provided at the front part of the body, and the operation arm is configured to be freely changeable in posture from the storage position standing upright and the working position protruding forward from the front part of the body. I have.
[0015]
Thus, according to the feature of claim 5, when the operating arm is set to the working position, for example, when the aircraft is put into the paddy field over the ridge or when the aircraft is put out on the road over the ridge, the operator on the ground can work at the working position. The operation arm can be appropriately controlled by suppressing the lifting of the front part of the aircraft or the like. In this case, if the spare seedling placement part and the support link are moved to the evacuation position, the pilot on the ground is less likely to interfere with the spare seedling placement part and the support link at the evacuation position, so that the operation of the aircraft is more appropriately performed. Can be done.
[0016]
[VI]
According to the feature of claim 6, as in any one of claims 1 to 5, the "action" described in the above [I] to [V] is provided, and in addition to this, It has various "actions".
According to a sixth aspect of the present invention, a hopper for feeding fertilizer and a feeding unit are provided on the rear side of a driving seat provided in a driving unit of the body. In this case, in order to increase the capacity of the hopper, the hopper is configured to be large by approaching the driver's seat, or the hopper is extended from the rear side of the driver's seat to the lateral outside of the driver's seat. Or make the hopper large.
[0017]
When the hopper is configured as described above, the hopper may be in the way when the driver gets on and off the driver's driving section through the outside of the driver's seat. When moved to the position, the spare seedling placing portion and the support link at the replenishing position are located at a position relatively far ahead of the operating portion of the machine. As a result, when the operator gets on and off the driving section of the aircraft through the lateral outside of the driver's seat, the passage for getting on and off is relatively largely opened, so that the aircraft passing through the laterally outside of the driver's seat can be moved. Getting on and off the driving section becomes easier.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
[1]
As shown in FIGS. 1 and 2, an operating unit 3 is provided on the body supported by the front wheels 1 and the rear wheels 2, and a seedling planting device 6 is moved up and down via a link mechanism 4 and a hydraulic cylinder 5 at the rear of the body. A riding rice transplanter is supported so as to be freely driven.
[0019]
As shown in FIG. 1 and FIG. 2, the seedling planting device 6 is configured as a four-row planting type, and is rotatably driven on two transmission cases 21 and right and left lateral sides of a rear part of the transmission case 21. , A pair of planting arms 23 provided at both ends of the planting case 22, a ground float 24, a seedling rest 25 on which the seedlings are placed, and the like. With this, the planting case 22 is rotationally driven in accordance with the reciprocating lateral movement of the seedling rest 25 to the left and right, and the planting arm 23 alternately takes out the seedling from the lower part of the seedling rest 25 and places it on the rice field. Plant.
[0020]
As shown in FIGS. 1 and 2, a driving seat 8 is provided above the floor 7 in the driving section 3, and a hopper 26 for storing fertilizer behind the driving seat 8, a feeding section 27, and a blower 28. Is provided. The ground float 24 is provided with a groove generator 29, and the hose 30 is connected between the feeding portion 27 and the groove generator 29. As a result, the fertilizer is fed from the hopper 26 by a predetermined amount by the feeding unit 27 in accordance with the planting of the seedling as described above, and the fertilizer is supplied to the groove generator 29 through the hose 30 by the blower 28. There, fertilizer is supplied to the rice field via the groove generator 29.
[0021]
[2]
Next, the structure near the driving unit 3 will be described.
As shown in FIGS. 1, 2, and 3, a driver's seat 8 is provided above the rear of the floor 7, and a hood 9 that covers an engine (not shown) is provided in front of the floor 7, and a right side of the hood 9 is provided. On the left and right sides, right and left steps 10 leading to the floor 7 are provided. A steering handle 11 for steering the front wheels 1 is provided above the bonnet 9. An accelerator lever 15 and an elevating lever for operating an accelerator of the engine are provided on the right side of the steering handle 11 above the bonnet 9. A main shift lever 13 is provided on the left lateral side of the steering handle 11. An auxiliary shift lever 16 is provided on the left lateral side of the rear surface of the hood 9.
[0022]
As shown in FIGS. 1, 2, and 3, the raising / lowering lever 12 is operable to a raising position, a neutral position, a lowering position, and a planting position. The attachment positions are arranged in this order (the state shown in FIG. 2 is a state in which the elevating lever 12 is operated to the neutral position). When the raising / lowering lever 12 is moved to the raised position, a planting clutch (not shown) for transmitting power to the seedling planting device 6 is operated in a disconnected state, and the seedling planting device 6 is driven up by the hydraulic cylinder 5. . When the elevating lever 12 is operated to the neutral position, the planting clutch is operated to be in the disengaged state, and the hydraulic cylinder 5 is stopped. When the raising / lowering lever 12 is operated to the lowered position, the planting clutch is operated to be in the disengaged state, and the hydraulic cylinder 5 drives the seedling planting device 6 downward. When the raising / lowering lever 12 is operated to the planting position, the planting clutch is operated in the transmission state, and the seedling planting device 6 is automatically driven up and down by the hydraulic cylinder 5 so as to be maintained at the set height from the rice field. .
[0023]
A hydrostatic continuously variable transmission (not shown) and a gear transmission type auxiliary transmission (not shown) are provided, and the power of the engine is transmitted through a belt-type tension clutch (not shown). The transmission is transmitted to the front wheel 1 and the rear wheel 2 from the hydrostatic continuously variable transmission via the auxiliary transmission. The hydrostatic continuously variable transmission is configured to be capable of continuously changing the speed in a neutral position, a high-speed side of forward movement and a high-speed side of reverse movement, and the sub-transmission is composed of a low-speed planting traveling position and a high-speed road traveling position. It is configured as a position switching type.
[0024]
The state shown in FIGS. 1 and 2 is a state in which the main transmission lever 13 is operated to the neutral position, and the hydrostatic stepless transmission is operated to the neutral position, and the machine is stopped. When the main transmission lever 13 is operated from the neutral position to the forward speed change range, the hydrostatic continuously variable transmission is operated to the forward high speed side, and the main transmission lever 13 is moved from the neutral position to the rear reverse speed range. When operated, the hydrostatic continuously variable transmission is operated to the reverse high speed side. As shown in FIG. 1, by operating the sub-transmission lever 16 upward and downward, the sub-transmission is operated to the low-speed planting traveling position and the high-speed road traveling position.
[0025]
As shown in FIGS. 2 and 3, an operation pedal 14 is provided at a portion near the floor 7 in the right step 10, and when the operation pedal 14 is operated to a lower stepping position, the hydrostatic continuously variable transmission is activated. The brake (not shown) that is operated to the neutral position and that can brake the front wheel 1 and the rear wheel 2 is operated to the braking side. When the operation pedal 14 is operated to the upper return position, the brake is operated to the brake release side while the hydrostatic stepless transmission is left at the neutral position, and the operation pedal is operated by a spring (not shown). 14 is urged to the upper return position side.
[0026]
As shown in FIGS. 2 and 3, an operation lever 17 is provided at a position adjacent to the bonnet 9 side of the operation pedal 14, and the operation lever 17 can be freely operated up and down between an upper traveling position and a lower stop position. It is configured and biased to an upper running position. When the operation lever 17 is operated to the upper traveling position, the tension clutch is operated to the transmission state, and the brake is operated to the brake release side. When the operation lever 17 is operated to the lower stop position, the above-described operation is performed. Is operated in the disengaged state, and the above-mentioned brake is operated on the braking side.
[0027]
As shown in FIGS. 2 and 3, the operation lever 17 is provided with a connection fitting 49 capable of connecting and disconnecting the operation pedal 14 and the operation lever 17. Thus, in a state where the operation pedal 14 and the operation lever 17 are not connected by the connection fitting 49, the operation pedal 14 and the operation lever 17 are independently moved to the upper return position and the lower stepping position (the upper traveling position and the lower stop position). Position). When the operation pedal 14 and the operation lever 17 are connected by the connection fitting 49, the operation pedal 14 and the operation lever 17 are operated together to the upper return position and the lower stepping position (the upper traveling position and the lower stop position). be able to.
[0028]
As shown in FIGS. 2 and 3, in the right step 10, a lock lever 18 is provided on a front portion of the operation pedal 14 and the operation lever 17. In a state where the operation pedal 14 and the operation lever 17 are not connected by the connection fitting 49, the operation pedal 14 and the operation lever 17 can be independently held at the lower stepping position and the lower stop position by the lock lever 18. In a state where the operation pedal 14 and the operation lever 17 are connected by the connection fitting 49, the operation pedal 14 and the operation lever 17 can be held together at the lower stepping position and the lower stop position by the lock lever 18.
[0029]
As shown in FIGS. 1, 2, and 3, a front frame 19 supporting the engine is provided at a lower portion of a front portion of the body, and an operation arm 20 is provided around a horizontal axis P1 of the front frame 19 in the body left-right direction. It is swingably supported. The operation arm 20 is configured in an inverted U-shape in a front view, and is configured to be swingable between a storage position standing upright as shown in FIG. 1 and a work position protruding forward from a front part of the body. I have. When the operating arm 20 is operated to the working position, the front wheels 1 and the steering handle 11 are held in the straight traveling position, and when the operating arm 20 is operated to the retracted position, the holding of the front wheels 1 and the steering handle 11 is released. ing.
[0030]
[3]
Next, the reserve seedling rests provided on the right and left sides of the front of the body will be described.
As shown in FIGS. 1 and 3, a support frame 31 fixed to the front frame 19 extends to the right and left lateral outer sides, and a support member 32 formed by bending a plate material into a U-shape is supported. The support member 32 is fixed to the end of the frame 31 and is located outside the right and left steps 10 on the right and left sides.
[0031]
As shown in FIGS. 4 and 5, a support link 33 is supported swingably back and forth around a horizontal axis P2 of the support member 32 in the body left-right direction, extends upward, and extends in the body left-right direction of the support member 32. A front link 34 is swingably supported back and forth and extends upward around the horizontal axis P3. A support member 35 formed by bending a plate material into an inverted U-shape includes a support link 33 and a front link 34. The link 34 is swingably supported around horizontal axes P4 and P5 in the lateral direction of the body above the link 34. As a result, the support link 33, the front link 34, and the support members 32 and 35 form a parallel quadruple link.
[0032]
As shown in FIGS. 4 and 5, one support frame 36 is fixed to the support member 35 and extends upward. U-shaped support members 37 and 38 are fixed to the support frame 36 at two upper and lower positions, and the auxiliary seedling mounting portions 39 are arranged around the horizontal axis cores P6 and P7 of the support members 37 and 38 in the longitudinal direction of the body. Are swingably supported at a working position facing right and left outward and a storage position facing upward.
[0033]
With the above structure, as shown in FIG. 4, the spare seedling mounting portion 39, the support frame 36, and the support link 33 are located on the lateral side of the front part of the body and are directed substantially upward, and the work position A1, the work position It is movable in a substantially parallel manner over a replenishment position A2 located below and forward of A1 and facing substantially upward, and a retreat position A3 located below and backward and substantially upward of the work position A1. .
[0034]
As shown in FIGS. 3, 4, and 5, a torsion bar 44 is provided in parallel with the support frame 31, an inner end 44a of the torsion bar 44 is fixed to the front frame 19, and an outer end of the torsion bar 44 is provided. The portion 44b is connected to the support link 33. As shown in FIG. 4, the torsion bar 44 is in a free state at the working position A1 of the preliminary seedling mounting part 39, the support frame 36, and the support link 33, and the preliminary seedling mounting part 39, the support frame 36, and the support When the link 33 moves from the work position A1 to the replenishment position A2 side and the retreat position A3 side, the urging force for urging the spare seedling placing portion 39, the support frame 36, and the support link 33 to the work position A1 side becomes torsion. Occurs at bar 44.
[0035]
As shown in FIG. 4, a stopper 35 a is fixed to the rear part of the support member 35, and the support link 33 is connected to the stopper 35 a of the support member 35 at the replenishment position A <b> 2 of the spare seedling mounting portion 39, the support frame 36, and the support link 33. By the contact, the state in which the preliminary seedling placing portion 39, the support frame 36, and the support link 33 move forward from the supply position A2 is stopped. A part of the support member 32 is extended and bent to form a stopper 32a. At the retreat position A3 of the spare seedling mounting portion 39, the support frame 36, and the support link 33, the support link 33 is By abutting on 32a, the state in which the spare seedling placing portion 39, the support frame 36, and the support link 33 move rearward from the retreat position A3 is stopped.
[0036]
[4]
Next, a structure for holding and releasing the holding of the stand for the spare seedling will be described.
As shown in FIGS. 5 and 6A, a holding member 40 formed in a semicircular shape is provided, and a lower portion 40a of the holding member 40 is extended downward and bent into an L-shape. The lower part 40 a of the holding member 40 is fixed to the upper part of the support link 33. Thereby, as shown in FIG. 5, the support member 35 is sandwiched between the holding member 40 and the upper part of the support link 33, and the support frame 36 (the support member 35) with respect to the support link 33 is left and right of the machine body. Directional tilt is prevented.
[0037]
As shown in FIGS. 5 and 6A, five engagement holes 40b are provided in the upper part of the holding member 40 along the longitudinal direction of the machine. The bracket 41 is fixed to the support frame 36, and the fixed rod 42 is supported by the bracket 41 so as to be movable up and down, and urges the fixed rod 42 downward (toward the insertion side of the holding member 40 into the engagement hole 40b). A spring 43 is provided on the bracket 41.
[0038]
As shown in FIGS. 5 and 6A, the posture of the spare seedling placement portion 39 and the support frame 36 with respect to the support link 33 is maintained by inserting and removing the fixing rod 42 into and out of the engagement hole 40b of the holding member 40. The holding link 33 can hold and release the posture of the support link 33 with respect to the body. Therefore, by inserting and removing the fixing rod 42 into and out of the engagement hole 40b of the holding member 40, the spare seedling placing portion 39, the support frame 36, and the support link 33 are moved to the working position A1 and the replenishing position A2 as shown in FIG. In addition, it can be held and released at the evacuation position A3, a position between the work position A1 and the replenishment position A2, and a position between the work position A1 and the evacuation position A3. As described above, the lock mechanism 45 is configured by the holding member 40 and the fixed rod 42.
[0039]
As shown in FIGS. 5 and 6 (a), a part of the support member 38 extends downward and is bent in a U-shape to form a bracket 38a. A round pipe-shaped operation tool 46 is supported so as to be vertically swingable around the horizontal axis P8 in the direction. A part of the support member 38 extends downward and is bent in a U-shape to form stoppers 38b and 38c. The operation is performed within a range where the operating tool 46 contacts the stoppers 38b and 38c of the support member 38. The tool 46 is configured to be swingable up and down. The upper end 42a of the fixed rod 42 is bent, and the upper end 42a of the fixed rod 42 is inserted into the opening 46c of the operating tool 46.
[0040]
As shown in FIGS. 1, 2, and 3, the operation tool 46 extends forward and rearward, and the front end of the operation tool 46 projects forward from the front of the spare seedling mounting portion 39. The rear end of the tool 46 protrudes rearward from the rear part of the spare seedling mounting part 39. The front end and the rear end of the operating tool 46 are bent to form grips 46a and 46b, and the front and rear grips 46a and 46b of the operating tool 46 are reserved in the lateral direction of the machine. It extends to the seedling mounting part 39 side.
[0041]
As a result, as shown in FIG. 2, the front and rear grips 46 a and 46 b of the operation tool 46 are directed to the right and left sides outwardly opposite to the right and left steps 10, The front and rear grips 46a and 46b of the operating tool 46 do not protrude right and left laterally outward from the spare seedling mounting section 39 (the front and rear grips 46a of the operating tool 46). , 46b are not much out of the range of the left and right widths of the spare seedling mounting portion 39 in plan view).
[0042]
[5]
Next, the operation of holding and releasing the holding of the stand for the spare seedling will be described.
The state shown in FIGS. 4 and 6 (a) is a state in which the spare seedling placing portion 39, the support frame 36, and the support link 33 are located at the work position A1, and the fixing rod 42 is engaged with the holding member 40. It is inserted into the hole 40b, and the spare seedling placing portion 39, the support frame 36, and the support link 33 are held at the working position A1.
[0043]
As described above, in a state in which the spare seedling placing portion 39, the support frame 36, and the support link 33 are located at the work position A1, the support link 33 and the support frame 36 are attached to the body in a side view shown in FIG. The support link 33 and the support frame 36 extend straight upward and are substantially aligned. When the operating tool 46 contacts the stopper 38b of the support member 38 by the urging force of the spring 43 in the side view shown in FIG. As shown in FIG. 2, the grip portion 46 a on the front side of the operating tool 46 is moved forward from the front portion of the spare seedling mounting portion 39 at a predetermined distance from the front portion of the spare seedling mounting portion 39. The grip portion 46b on the rear side of the operation tool 46 is located rearward at a predetermined interval from the rear portion of the spare seedling mounting portion 39.
[0044]
As shown in FIGS. 4 and 6 (a), in a state where the spare seedling placing portion 39, the support frame 36, and the support link 33 are located at the work position A1, the two-dot chain line in FIG. ), When the front grip 46a of the operating tool 46 is operated upward (when the rear grip 46b on the rear of the operating tool 46 is operated downward), the fixing rod 42 is raised to engage the holding member 40. It is extracted from the hole 40b.
[0045]
Thereby, the preliminary seedling mounting part 39, the support frame 36, and the support link 33 are moved obliquely forward and downward against the torsion bar 44, so that the preliminary seedling mounting part 39, the support frame 36, and the support link 33 are moved. As shown in FIG. 4, it is possible to move from the work position A1 to a position between the work position A1 and the replenishment position A2, to the replenishment position A2, and to connect the spare seedling mounting portion 39, the support frame 36, and the support link 33 to the torsion bar. By moving the auxiliary seedling mounting portion 39, the support frame 36, and the support link 33 from the work position A1 to the position between the work position A1 and the retreat position A3, and to the retreat position A3, Can be moved.
[0046]
Thereafter, as shown in the solid line of FIG. 4 and FIG. 6A, when the front grip 46a of the operating tool 46 is operated downward (when the rear grip 46b on the rear of the operating tool 46 is operated upward), The fixing rod 42 is lowered and inserted into the engagement hole 40b of the holding member 40, and the spare seedling placing portion 39, the support frame 36, and the support link 33 are moved to the supply position A2, the retreat position A3, the work position A1, and the supply position A2. , And between the work position A1 and the retreat position A3.
[0047]
As shown in FIG. 4, the spare seedling placement portion 39, the support frame 36, and the support link 33 are moved obliquely rearward and upward from a position between the supply position A2 and the work position A1 and the supply position A2 to move to the work position A1. When moving, the preliminary seedling placing portion 39, the support frame 36, and the support link 33 are moved obliquely forward and upward from the retreat position A3, a position between the work position A1 and the retreat position A3, and moved to the work position A1. As described above, the grip 46a on the front side of the operating tool 46 is operated downward (the grip 46b on the rear side of the operating tool 46 is operated upward). In this case, the torsion bar 44 is used. Assists the movement of the spare seedling mounting portion 39, the support frame 36, and the support link 33.
[0048]
[First Embodiment of the Invention]
Instead of the above-described structure of the support member 38 and the operating tool 46 in [Embodiment of the invention], a configuration as shown in FIGS.
As shown in FIG. 7A, the bracket 38a and the stoppers 38b and 38c (see FIGS. 6A and 6B) of the support member 38 are eliminated, and the bracket 38d is extended from the support member 38, and the support member 38 is extended. Is provided with an arc-shaped long hole 38e. The operating tool 46 is provided with a pair of pins 46d in the lateral direction of the machine body. The pin 46d of the operating tool 46 is inserted into the elongated hole 38e of the support member 38, and the upper end 42a of the fixed rod 42 is inserted into the opening 46c of the operating tool 46. Insert As a result, the front grip 46a of the operating tool 46 can be operated upward, and the rear grip 46b of the operating tool 46 can be operated upward.
[0049]
The state shown in FIG. 7A is a state in which the fixing rod 42 is operated downward and is inserted into the engagement hole 40b of the holding member 40, and as shown in FIG. Even if the grip portion 46a of the operation tool 46 is operated upward or the grip portion 46b on the rear side of the operating tool 46 is operated upward as shown in FIG. It is pulled out from the engagement hole 40b of 40.
[0050]
[Second Alternative Embodiment of the Invention]
Instead of the structure of the support member 38 and the operating tool 46 in the above-mentioned [Embodiment of the invention], a configuration as shown in FIGS.
As shown in FIG. 8A, the bracket 38a and the stoppers 38b and 38c of the support member 38 (see FIGS. 6A and 6B) are eliminated, and the support member 38 is provided with a pair of long holes 38f in the longitudinal direction of the body. Is provided. The operating tool 46 is provided with a pair of links 47 that can swing up and down. The end of the link 47 is slidably inserted into the long hole 38 f of the support member 38, and the upper end of the fixed rod 42 is inserted into the opening 46 c of the operating tool 46. The part 42a is inserted. As a result, the front grip 46a of the operating tool 46 can be operated upward, and the rear grip 46b of the operating tool 46 can be operated upward.
[0051]
The state shown in FIG. 8A is a state in which the fixing rod 42 is operated downward and inserted into the engagement hole 40b of the holding member 40, and as shown in FIG. Even if the grip portion 46a of the operating tool 46 is operated upward or the grip portion 46b on the rear side of the operating tool 46 is operated upward as shown in FIG. It is pulled out from the engagement hole 40b of 40.
[0052]
[Third Alternative Embodiment of the Invention]
Instead of the above-described structure of the support member 38 and the operating tool 46 in [Embodiment of the invention], a configuration as shown in FIGS.
As shown in FIG. 9A, the bracket 38a of the support member 38 and the stoppers 38b and 38c (see FIGS. 6A and 6B) are eliminated, and the support member 38 is provided with a bracket 38g. The operation shaft 46 is rotatably supported around a horizontal axis P9 of the bracket 38g of the support member 38 in the longitudinal direction of the machine body, and the front end and the rear end of the operation tool 46 are located on the spare seedling mounting portion 39 side. The handle portions 46a and 46b are formed by bending, and the fixed rod 42 is connected to the arm 46e fixed to the operation shaft 46.
[0053]
The state shown in FIG. 9A is a state in which the fixing rod 42 is operated downward and inserted into the engagement hole 40b of the holding member 40, and the front grip portion 46a of the operating tool 46 (the rear grip portion) is used. When the operating tool 46 is rotated around the horizontal axis P9 in the counterclockwise direction on the paper as shown in FIG. 9B, the fixing rod 42 is operated upward to engage the holding member 40. It is extracted from the hole 40b.
[0054]
[Fourth alternative embodiment of the invention]
Instead of the above-described structure of the support member 38 and the operating tool 46 in [Embodiment of the invention], a configuration as shown in FIG. 10 may be used.
As shown in FIG. 10, the bracket 38a of the support member 38 and the stoppers 38b and 38c (see FIGS. 6A and 6B) are omitted, and the bracket 48 is provided on the support frame 36. The operation shaft 46 is rotatably supported around a horizontal axis P10 of the support bracket 48 in the longitudinal direction of the machine body, and the front end and the rear end of the operation tool 46 are bent upward to form grip portions 46a and 46b. Then, the fixed rod 42 is connected to the arm 46e fixed to the operation shaft 46.
[0055]
The state shown in FIG. 10 is a state in which the fixing rod 42 is operated downward and is inserted into the engagement hole 40b of the holding member 40, and the front grip portion 46a of the operating tool 46 (the rear grip portion 46b). When the operation tool 46 is rotated around the horizontal axis P10 clockwise in FIG. 10, the fixing rod 42 is operated upward to be pulled out from the engagement hole 40b of the holding member 40.
[0056]
【The invention's effect】
According to the first aspect of the present invention, in the structure of the spare seedling rest of the riding type rice transplanter, when the operator on the ground stands on the front side or the side of the front part of the aircraft and operates the aircraft, the spare seedling mounting part and the support are provided. By moving the link to the evacuation position, it is possible for the operator on the ground to keep the spare seedling placement part and the support link at the evacuation position from being in the way, and the operator on the ground is in front of the front of the aircraft. And the maneuverability of maneuvering the aircraft while standing sideways was improved.
[0057]
According to the feature of claim 1, for example, when the riding type rice transplanter is stored in the barn, the spare seedling placing part and the support link are moved out of the way by moving the spare seedling placing part and the supporting link to the evacuation position. That the riding type rice transplanter can be stored in the barn without any trouble, and when the spare seedling placing part and the support link are moved to the evacuation position in the barn, the spare seedling placing part and the supporting link are moved to the barn. The functionality of the spare seedling placement part and the support link is high because there is little contact with the object.
[0058]
According to the feature of claim 1, the spare seedling placing part and the support link are configured to be movable to the working position and the replenishing position, and the spare seedling placing part and the supporting link are moved to the working position in a normal planting operation. Since the spare seedling mounting portion and the support link can be moved to the replenishing position when the seedlings are replenished from the ridges, the advantage of the structure of Patent Document 1 is provided as it is.
[0059]
According to the feature of the second aspect, similar to the case of the first aspect, the "effect of the invention" of the above-described claim 1 is provided. It has.
According to the feature of claim 2, when the spare seedling placing part and the support link are moved from the retracted position to the working position, the urging force of the urging mechanism functions as an auxiliary, so that the spare seedling placing part and the supporting link are moved. It is possible to relatively easily move from the replenishment position to the work position (from the retreat position to the work position), thereby improving the operability of the spare seedling mounting portion and the support link.
[0060]
According to the feature of the third aspect, similar to the case of the second aspect, the present invention has the “effect of the invention” of the second aspect, and in addition to the “effect of the invention”, the following “effect of the invention” It has.
According to the feature of the third aspect, when the spare seedling placing portion and the support link are urged to the working position side between the supply position and the retreat position, the spare seedling placing portion and the supporting link are moved to the working position by one torsion bar. It is possible to be configured so as to bias toward the side, which is advantageous in terms of simplifying the structure of the biasing mechanism.
[0061]
According to the features of claim 4, the "effects of the invention" of the above-mentioned claims 1 to 3 are provided similarly to the case of any one of the claims 1 to 3, and in addition to the "effects of the invention" The following "effects of the invention" are provided.
According to the feature of the fourth aspect, the spare seedling placing portion and the support link can be stably held at the working position, the replenishing position, and the retreat position by the lock mechanism, and thus the spare seedling placing portion and the supporting link are provided. The stability at the working position, the replenishing position, and the retreating position can be improved.
[0062]
According to the feature of claim 5, the "effect of the invention" of the above-mentioned claims 1 to 4 is provided similarly to the case of any one of the claims 1 to 4, and in addition to the "effect of the invention" The following "effects of the invention" are provided.
According to the feature of claim 5, by providing an operation arm at the front part of the fuselage capable of changing a posture between a storage position standing upright and a work position protruding forward from the front part of the fuselage, a ground operator can be provided. By having the operating arm at the working position, it is possible to control the aircraft properly while suppressing the lifting of the front of the aircraft, so that the pilot on the ground can be placed on the front or side of the front of the aircraft. The maneuverability when standing and maneuvering the aircraft could be improved.
In this case, if the reserve seedling placement part and the support link are moved to the evacuation position, the reserve seedling placement part and the support link at the evacuation position are less likely to interfere with the ground operator, so that the ground operator The maneuverability when maneuvering the aircraft while standing at the front or side of the front of the aircraft could be further improved.
[0063]
According to the feature of claim 6, the "effect of the invention" of the above-mentioned claims 1 to 5 is provided similarly to the case of any one of the claims 1 to 5, and in addition to the "effect of the invention" The following "effects of the invention" are provided.
According to the feature of claim 6, when the hopper and the feeding part for fertilization are provided on the rear side of the driving seat provided in the driving part of the body, the spare seedling placing part and the support link are moved to the supply position. As a result, it is easy to get into and out of the driving section of the aircraft through the lateral outer side of the driver's seat, and it is possible to improve getting on and off.
[Brief description of the drawings]
FIG. 1 is an overall side view of a riding type rice transplanter. FIG. 2 is an overall plan view of a riding type rice transplanter. FIG. 3 is a front view of the riding type rice transplanter. FIG. 4 is a work position (supply position and retreat position). FIG. 5 is a front view of the vicinity of the spare seedling placement part, the support frame, and the support link. FIG. 5 is a front view of the vicinity of the spare seedling placement part, the support frame, and the support link. FIG. 7 is a longitudinal sectional side view showing the vicinity of a spare seedling mounting portion and a support frame showing a state in which the handle is operated upward (a state in which a grip portion on the rear side of the operating tool is operated upward and downward). FIG. 8 is a side view of the vicinity of the operating tool showing a state in which the front and rear grip portions of the operating tool have been operated upward in the embodiment. FIG. 8 is a front view and a rear view of the operating tool in a second alternative embodiment of the present invention. FIG. 9 is a side view of the vicinity of the operation tool showing a state in which the grip is operated upward. In state, in the fourth alternative embodiment of a front view in the vicinity of the operating tool showing a state in which the operation tool and the rotational operation [10] invention, a front view in the vicinity of the operating tool EXPLANATION OF REFERENCE NUMERALS
3 Operating part 8 Operating seat 20 Operating arm 26 Hopper 27 Feeding part 33 Support link 39 Spare seedling placing part 44 Biasing mechanism, torsion bar 45 Lock mechanism A1 Work position A2 Supply position A3 Retreat position P2 Horizontal axis

Claims (6)

A support link that can swing back and forth around the horizontal axis in the lateral direction of the machine is provided on the lateral side of the front part of the machine, and a spare seedling mounting portion for mounting seedlings is provided on the support link,
The spare seedling mounting portion and the support link are configured to be movable over a working position located on a lateral side of a front portion of the body, a replenishing position before the working position, and a retreat position after the working position. Stand structure for spare seedlings of a riding type rice transplanter. The spare seedling rest structure of the riding type rice transplanter according to claim 1, further comprising an urging mechanism for urging the spare seedling mounting portion and the support link toward the work position. The reserve seedling rest structure of the riding type rice transplanter according to claim 2, wherein the biasing mechanism is configured by attaching a torsion bar to the support link. The riding type rice transplanter according to any one of claims 1 to 3, further comprising a lock mechanism capable of holding and releasing the spare seedling placing portion and the support link at a working position, a supply position, and a retreat position. Stand structure for spare seedlings. 5. The operation arm according to claim 1, further comprising an operation arm provided at a front portion of the body, wherein the operation arm can be freely changed in posture from a storage position standing upright and a work position extending forward from the front portion of the body. A reserve seedling rest structure for the riding rice transplanter according to any one of the above. A reserve seedling rest for a riding type rice transplanter according to any one of claims 1 to 5, further comprising a fertilizer application hopper and a feed-out portion on a rear side of a driving seat provided in a driving portion of the fuselage. Construction.

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